International Journals |
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Year |
Content |
2018 | Journal / Book Name: Journal of Advances in Technology and Engineering Resaerch No/Edition: 2018,4(1): 37-47 Authors: A. El Ibrahim, S. Abdul Karim, I. Gov Aero structural optimization for sailplane wing in preliminary design |
2017 | Journal / Book Name: ACE-X 2017 No/Edition: 11 Authors: S.A.Karim Nonlinear dynamical behaviour of a rectangular thin plate with Bifurcation diagram |
Communications Presented and Published In a Book In The International Scientific Meetings |
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Year |
Content |
2018 | Journal / Book Name: 3nd international energy & engineering conference 18-19 October 2018 No/Edition: UMEK 2018 Authors: S.Abdul Karim. A. KHUDHIR DESIGN OF A LOW COST AND HIGH EFFICIENCY VERTICAL AXIS WIND TURBINE |
2017 | Journal / Book Name: 2nd international energy & engineering conference 12-13 October 2017 No/Edition: UMEK 2017 Authors: A. KHUDHIR, S.Abdul Karim Manufacturing Vertical Axis Wind Turbine with movable blades |
International Book(s) or Sections Of a Book That You Write |
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Year |
Content |
2018 | Journal / Book Name: chapter book Engineering Design Applications/pp 267-289 No/Edition: 1 Authors: sohayb abdul karim Nonlinear dynamics of rectangular isotropic thin plates with different boundary conditions are investigated. The plate governing equations of motion are nonlinear partial differential equation (PDE). The nonlinearity is caused by large deflection. The finite element method was used to discretize the continuous structures and convert the PDE into a second order ordinary differential equation (ODE).The implicit Newmark’s scheme and Newton-Raphson’s iteration were used to perform the time integration. Comparisons with the literature are presented in terms of backbone curve and frequency responses for three cases: (1) a simply supported plate with in-plane immovable edges, (2) out-of-plane restrained and in-plane immovable edges, (3) a fully clamped in-plane immovable edge. The model’s results showed excellent agreement, particularly for the first case, validating the procedure. Using the same set of results, bifurcation diagrams were extracted as well. The bifurcation diagrams are an important analysis tools extensively used in nonlinear dynamics showing in a glance the boundaries between different oscillatory modes. To the author’s knowledge, bifurcation diagrams have not been found for thin plates. |
2010 | Journal / Book Name: Advances and Trends in Structural Engineering, Mechanics and Computation No/Edition: ch Authors: S.A. Karim, A. Dafnis & H.-G. Reimerdes “The stick-slip joint effect on dynamics behaviour of nonlinear beam, chapter Book “Advances and Trends in Structural Engineering, Mechanics and Computation,” S.A. Karim, A. Dafnis & H.-G. Reimerdes, August 16, 2010 by CRC Press Reference ISBN 9780415584722. |